Send stream from blob URL to API - WIP

stream_blob_from_url_to_api.js

const url = "api.example.com/images";

fetch("https://blob:example.com")
  .then((response) => response.body)
  .then((rb) => {
    const reader = rb.getReader();

    return new ReadableStream({
      start(controller) {
        // The following function handles each data chunk
        function push() {
          // "done" is a Boolean and value a "Uint8Array"
          reader.read().then(({ done, value }) => {
            // If there is no more data to read
            if (done) {
              console.log("done", done);
              controller.close();
              return;
            }
            // Get the data and send it to the browser via the controller
            controller.enqueue(value);
            // Check chunks by logging to the console
            console.log(done, value);
            push();
          });
        }

        push();
      },
    });
  })
  .then((stream) => {
    return fetch(url, {
      method: "POST",
      headers: { "Content-Type": "image/jpeg" },
      body: stream,
    });
  })
  .then((result) => {
    // Do things with result
    console.log(result);
  });